Question

Which of the following is the slope between the two points (1, 5) and (6, 4)?


-5

negative 1 over 5

5

1 over 5

Answer 1

slope = change in X / change in Y

(6 - 1)
------
(4 - 5)

= 5 / -1
= - 5

Answer 2

sorry I mean, slope = change in Y / change in X

(4 - 5)
------
(6 - 1)

= -1 / 5

Answer 3

Yup. The slope formula is:
\[m = \frac{y_{1} - y_{2}}{x_{1} - x_{2}}\]
Make sure when using this formula, you use the x and y-values from each point in the same order.
\[m = \frac{(5 - 4)}{(1 - 6)} = -\frac{1}{5}\]

Answer 4

See how 5 and 1 are from the same coordinate and they were used in the same order?